Note: This procedure involves editing a game file; create a backup copy of the file before proceeding. Use a text editor to edit the "skrimish.ini" file in the "C:\Documents and Settings\User\Application Data\Command & Conquer 3 Tiberium Wars\Profiles\ProfileName" directory. Change the "10000" number of starting credits to any desired number.

Successfully complete the GDI and Nod campaign to unlock the four mission Scrin campaign.

Alternate ending

During the last GDI campaign mission, you have the choice to use Boyle's Liquid Tiberium Bomb. To view the "bad" ending, use the bomb. To view the good ending, do not use the bomb.

All GDI movies

Successfully complete the GDI campaign to unlock all GDI movies.

All Nod movies

Successfully complete the Nod campaign to unlock all Nod movies.

All Scrin movies

Successfully complete all of the single player campaigns to unlock all Scrin movies.

Placing buildings in thunder storm with Scrin

When playing as the Scrin in either Multiplayer or Skirmish mode, it is usually not possible to place buildings within a thunder storm produced by the Storm Tower. The trick to getting around this is to power down the Storm Tower, then place whatever you want next to it (for example, another Storm Tower). This strategy will help to improve your base defense.

Hold more Tiberium without Tiberium Silos

Note: This was done with the v1.4 patch. You can increase the amount of Tiberium you can have without the Tiberium Silos. When it asks you to build a Tiberium Silo, just build something, and when it completes just cancel (preferably something expensive like a Tech Center). The amount of Tiberium you can hold keeps increasing every time you do this.

GDI attack combinations

The following are attack combinations you can use in Skirmish missions:

Pitbull

Predator Tank

APC with a Grenadier Squad inside

3 or more Rifleman Squads

3 or more Missile Squads

2 APCs with Rifleman Squads inside

2 APCs with Missile Squads inside

2 Grenadier Squads

2 Rifleman Squads

2 Missile Squads

Nod attack combinations

The following are attack combinations you can use in Skirmish missions:

2 Militant Squads

2 Militant Rocket Squads

4 Raider Buggys

2 Flame Tanks

2 Scorpion Tanks

4 Raider Buggys

2 Attack Bikes

SCRIN attack combinations

The following are attack combinations you can use in Skirmish missions:

4 Buzzers

4 Disintergrators

3 Seekers (combined with Buzzers)

3 Gun Walkers (combined with Buzzers)

Rush tactic

This trick is useful for versus online multiplayer matches with 10,000. Play as Nod or GDI, and place a Crane. Then, build a Power Plant from each, and place them. Once this is done, build two Refineries, and place them. Next, sell one, and build another. On the other, build queue. Start building a war factory. Place it, and start to build another one. Make sure you have placed your second Refinery. Then, build two Harvesters from your War Factory. In the meantime, build Refineries and a Comm Center. The moment your Harvesters are done, start building as many Scorpion Tanks as possible. Place other War Factories and Power Plants as well to boost production. It is also helpful to place an anti-infantry base defenses near your MCV to stop the "Engineer rush" tactic. However, this uses power and is not necessary. This tactic works best on Redzone Rampage since each player starts with boosts resources as the blue Tiberium. Nod is the fastest since it has the quickest build speeds. Also, build Predators instead of Scorpions. As soon as possible, place the Tech Center, and upgrade tanks with either Laser Capacitors or Rail Guns. This will not always work, especially when you face upper level players in the higher ranks. However, it is possible to finish a battle in less than ten minutes with this tactic. It works best with 10,000, but can be done with more; however, it is harder as the opposition will have stronger weapons than you. It works well with 20 as you can use shortcuts and an extra Crane to boost production and speed of rush.

Play as Nod in Skirmish mode (demo version)

At the Skirmish options menu, hold N and click your army to unlock Nod as a selectable option. To switch back to GDI, hold G and click your army. This also works for the CPU army.